Diploma Validity：   Corresponding body and personnel can check the authenticity of diplomas awarded by Chinese Welding Training & Qualification Committee (CANB) here.   　 International Welding Engineer（IWE） 　 International Welding Technologist（IWT） 　 International Welding Specialist（IWS） 　 International Welding Practitioner（IWP） 　 International Welding Inspection Personnel（IWIP） 　　- Comprehensive level 　　- Standard level 　　- Basic level 　 International Welder（IW）